Our contact address is being set up. Until then, every figure on the site links to its public source on the methodology page.
Reporting a correction
Tell us the page, the figure and what you believe it should be, with a link to a public source if you have one. Figures come from federal releases, so a fix usually means the source changed or we read it wrong; either way we will say what we changed.
Data and API
See the API documentation and plans.